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Location: Nantucket, Massachusetts, United States

The following ISS sightings are possible from Friday Oct 22, 2021 through Saturday Nov 6, 2021

Date Visible Max Height Appears Disappears Share Event
Sat Oct 23, 4:53 AM 3 min 20° 19° above SE 10° above E  
Sun Oct 24, 5:41 AM 5 min 82° 39° above WSW 10° above NE  
Mon Oct 25, 4:57 AM 2 min 33° 33° above ENE 10° above ENE  
Tue Oct 26, 5:45 AM 3 min 33° 32° above NW 10° above NE  
Wed Oct 27, 4:59 AM 2 min 24° 24° above NE 10° above NE  
Thu Oct 28, 5:47 AM 3 min 19° 19° above NNW 10° above NNE  
Fri Oct 29, 5:02 AM 1 min 16° 16° above NNE 10° above NE  
Sat Oct 30, 5:50 AM 3 min 15° 14° above NNW 10° above NNE  
Sun Oct 31, 5:04 AM 1 min 13° 13° above NNE 10° above NNE  
Mon Nov 1, 5:52 AM 3 min 14° 12° above NNW 10° above NE  
Tue Nov 2, 5:07 AM 1 min 13° 13° above NNE 10° above NNE  
Wed Nov 3, 5:54 AM 4 min 18° 14° above NNW 10° above ENE  
Thu Nov 4, 5:09 AM 1 min 15° 15° above NNE 10° above NE  
Fri Nov 5, 5:56 AM 5 min 29° 18° above NNW 10° above E  
Sat Nov 6, 5:11 AM 2 min 21° 21° above NNE 10° above ENE  
2021-10-23 08:53:00.0,Sat Oct 23, 4:53 AM,3 min,20°,19° above SE,10° above E|2021-10-24 09:41:00.0,Sun Oct 24, 5:41 AM,5 min,82°,39° above WSW,10° above NE|2021-10-25 08:57:00.0,Mon Oct 25, 4:57 AM,2 min,33°,33° above ENE,10° above ENE|2021-10-26 09:45:00.0,Tue Oct 26, 5:45 AM,3 min,33°,32° above NW,10° above NE|2021-10-27 08:59:00.0,Wed Oct 27, 4:59 AM,2 min,24°,24° above NE,10° above NE|2021-10-28 09:47:00.0,Thu Oct 28, 5:47 AM,3 min,19°,19° above NNW,10° above NNE|2021-10-29 09:02:00.0,Fri Oct 29, 5:02 AM,1 min,16°,16° above NNE,10° above NE|2021-10-30 09:50:00.0,Sat Oct 30, 5:50 AM,3 min,15°,14° above NNW,10° above NNE|2021-10-31 09:04:00.0,Sun Oct 31, 5:04 AM,1 min,13°,13° above NNE,10° above NNE|2021-11-01 09:52:00.0,Mon Nov 1, 5:52 AM,3 min,14°,12° above NNW,10° above NE|2021-11-02 09:07:00.0,Tue Nov 2, 5:07 AM,1 min,13°,13° above NNE,10° above NNE|2021-11-03 09:54:00.0,Wed Nov 3, 5:54 AM,4 min,18°,14° above NNW,10° above ENE|2021-11-04 09:09:00.0,Thu Nov 4, 5:09 AM,1 min,15°,15° above NNE,10° above NE|2021-11-05 09:56:00.0,Fri Nov 5, 5:56 AM,5 min,29°,18° above NNW,10° above E|2021-11-06 09:11:00.0,Sat Nov 6, 5:11 AM,2 min,21°,21° above NNE,10° above ENE|

The space station looks like an airplane or a very bright star moving across the sky, except it doesn't have flashing lights or change direction. It will also be moving considerably faster than a typical airplane (airplanes generally fly at about 600 miles per hour; the space station flies at 17,500 miles per hour).

Below is a time-lapse photo of the space station moving across the sky.

The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls The International Space Station is seen in this 30 second exposure as it flies over Elkton, VA early in the morning, Saturday, August 1, 2015. Photo Credit: NASA/Bill Ingalls

Visit the NASA Johnson Flickr Photostream

How do I Spot The Station?

What does all this sighting information mean?

Time is when the sighting opportunity will begin in your local time zone. All sightings will occur within a few hours before or after sunrise or sunset. This is the optimum viewing period as the sun reflects off the space station and contrasts against the darker sky.

Visible is the maximum time period the space station is visible before crossing back below the horizon.

Max Height is measured in degrees (also known as elevation). It represents the height of the space station from the horizon in the night sky. The horizon is at zero degrees, and directly overhead is ninety degrees. If you hold your fist at arm's length and place your fist resting on the horizon, the top will be about 10 degrees.

Appears is the location in the sky where the station will be visible first. This value, like maximum height, also is measured in degrees from the horizon. The letters represent compass directions -- N is north, WNW is west by northwest, and so on.

Disappears represents where in the night sky the International Space Station will leave your field of view.

Astronomical Horizon chart. Click the link for a detailed description of the astronomical horizon and sighting alert messages.